#include <iostream>
#include <stdlib.h>

using namespace std;

int main()
{   
    const int a = 100;            //真正的const
    cout<<a<<endl;
    char *p =(char*)malloc(100);

// c语言没有字符串类型
// c语言中表示真假 用0 和非0 

    string s;
    bool b = false;
    if(!b)
    {
        cout<<"b value is false\n";
    }
    else
    {
        cout<<"b value is true\n";
    }
    
    return 0;
}




